Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 35, Issue 4, Pages 431-436Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201300833
Keywords
bifunctional initiator; hydrogen bond; living radical polymerization; polystyrene; supramolecule
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Funding
- Japan Society for the Promotion of Science (JSPS) KAKENHI [23685024, 24245026]
- Global COE Program International Center for Integrated Research and Advanced Education in Materials Science of the Ministry of Education, Culture, Sports, Science, and Technology, Japan
- Grants-in-Aid for Scientific Research [23685024] Funding Source: KAKEN
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This paper deals with the precision introduction of a multiple hydrogen-bonding site of a high association constant at the central position of a vinyl polymer chain for complementary self-assemblies. The interactive site consists of an array of hydrogen donors (D) and acceptors (A) to induce a multiple and highly associable interaction with a complementary counterpart. A bifunctional initiator (Cl-DADDAD-Cl) for metal-catalyzed living radical polymerization is thus designed and synthesized to embed a Hamilton receptor (DADDAD) between two terminal chlorides (Cl). In the presence of a ruthenium complex, the dichloride gives controlled polymers (ClDADDADCl, : polymer backbone) of narrow molecular weight distributions ((M)over bar(w)/(M)over bar(n) < 1.2) from common monomers such as styrene and methyl methacrylate (MMA). The receptor-decorated polystyrene recognizes complementary associable molecules and polymers carrying an ADADA unit (ADADA-Anthracene and ADADA-PMMA) to form self-assemblies where the association constant is as high as K-ass approximate to 8000 M-1.
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